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July 9, 2015 04:00 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/uLK_9iLV8_U/short-sleepers-might-be-benefiting-from-a-dna-mutation
Short Sleepers Might Be Benefiting From a DNA Mutation
An anonymous reader writes: As someone definitely not in that category, I envy people who can get along with little sleep, have sometimes secretly believed they're exaggerating. Maybe not. The BBC reports on DNA research that says there might be genetic basis for the very slow sleep needs that some people have. The article says that UC-San Francisco researchers "compared the genome of different family members. They discovered a tiny mutation in a gene called DEC2 that was present in those who were short-sleepers, but not in members of the family who had normal length sleep, nor in 250 unrelated volunteers. When the team bred mice to express this same mutation, the rodents also slept less but performed just as well as regular mice when given physical and cognitive tasks." If it's stuck in the genes, though, I guess I'll still want more hours in a row if I don't want to start hallucinating. So how many hours do you need? I seem to get along with six or seven, but sleep past noon on the occasional weekend day.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/uLK_9iLV8_U/short-sleepers-might-be-benefiting-from-a-dna-mutation
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